Much More Ultra Silver X motor brushes
Much More have released their newest precision molded brushes made using a race-tested Ultra Silver X motor brush compound. This is the choice for all 4-5-6 cell applications and both of these models are available as direct replacements for the Farrel 23T and Kali modified motors. For off road 2WD applications, you can expect more than 40 runs without any commutator maintenance with these brushes and after several runs on these brushes the motor actually gains power without diminished efficiency. The shunt wires are made of high quality material to handle the high current produced when racing.
Source: Much More [much-more.co.kr]